buy the 25 ft long snake from homedepot. May have to try from a few access
points, the tub, a sink, etc. If you access from the tub, you can insert the
snake from the regular outlet port, and for that to work, you need to get a
tool to remove the cross-shaped outlet piece, and once you are done, make
sure you put on some special sealant before you put the outlet piece back on
. Otherwise, will leak. If you use the overflow hole, make sure you do not
damage the gasket around the hole. If you do damage, make sure you replace
it.It took me about 1 year or two to finally figure out a way to fix it
after we had slow water flow from the tub.